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Phase Transformatio...
Phase Transformation of Ti(B,N) into TiB2 and TiN Studied by Atom Probe Tomography
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- Johnson, Lars (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
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- Rachbauer, Richard (författare)
- Montan University Leoben, Austria
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- Persson, Per (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
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visa fler...
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- Hultman, Lars (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
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- Mayrhofer, Paul H. (författare)
- University of Leoben, Austria
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visa färre...
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(creator_code:org_t)
- Engelska.
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- The phase transformation of supersaturated solid-solution cubic (c) Ti0.57(B0.28N0.72)0.43 thin films into the equilibrium phases TiN and TiB2 has been studied by a combination of X-ray diffraction, transmission electron microscopy, and atom probe tomography. The transformation was found to progress through nucleation and growth, first of TiN and c-TiB0.5N0.5, followed by transformation of the B-rich precipitates to TiB2. The two-step process is interpreted as Guinier-Preston zone formation due to the incoherency between c-TiN and hexagonal TiB2. The nucleation was furthermore observed to be unclassical, with non-equilibrium compositions and extensive interfacial regions in the nuclei.
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